From patchwork Thu Sep 10 09:57:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jean Delvare X-Patchwork-Id: 254741 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_SANE_2 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D761C2BB84 for ; Thu, 10 Sep 2020 09:59:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 61F8520882 for ; Thu, 10 Sep 2020 09:59:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730769AbgIJJ6s convert rfc822-to-8bit (ORCPT ); Thu, 10 Sep 2020 05:58:48 -0400 Received: from mx2.suse.de ([195.135.220.15]:33488 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730556AbgIJJ5N (ORCPT ); Thu, 10 Sep 2020 05:57:13 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 298B3AD39; Thu, 10 Sep 2020 09:57:25 +0000 (UTC) Date: Thu, 10 Sep 2020 11:57:08 +0200 From: Jean Delvare To: Linux I2C Cc: Volker =?utf-8?q?R=C3=BCmelin?= , Bjorn Helgaas , Vaibhav Gupta , Wolfram Sang Subject: [PATCH] i2c: i801: Exclude device from suspend direct complete optimization Message-ID: <20200910115708.263c8e02@endymion> Organization: SUSE Linux X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-suse-linux-gnu) MIME-Version: 1.0 Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org By default, PCI drivers with runtime PM enabled will skip the calls to suspend and resume on system PM. For this driver, we don't want that, as we need to perform additional steps for system PM to work properly on all systems. So instruct the PM core to not skip these calls. Fixes: a9c8088c7988 ("i2c: i801: Don't restore config registers on runtime PM") Reported-by: Volker Rümelin Signed-off-by: Jean Delvare Cc: stable@vger.kernel.org --- drivers/i2c/busses/i2c-i801.c | 1 + 1 file changed, 1 insertion(+) --- linux-5.8.orig/drivers/i2c/busses/i2c-i801.c 2020-09-09 18:41:55.118961045 +0200 +++ linux-5.8/drivers/i2c/busses/i2c-i801.c 2020-09-10 11:36:40.352858458 +0200 @@ -1917,6 +1917,7 @@ static int i801_probe(struct pci_dev *de pci_set_drvdata(dev, priv); + dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE); pm_runtime_set_autosuspend_delay(&dev->dev, 1000); pm_runtime_use_autosuspend(&dev->dev); pm_runtime_put_autosuspend(&dev->dev);